SSlmixed.com Forum

Tech discussion => 4K,6K,8K Series => Topic started by: RoyMixer on February 02, 2020, 04:35:53 PM

Title: 681G G remote keyboard interface schematic
Post by: RoyMixer on February 02, 2020, 04:35:53 PM

Hi All,

I wondering if anyone has schematic or any info about 681G G remote keyboard interface.

all I have is attached here.

Thanks in advance!
R

Title: Re: 681G G remote keyboard interface schematic
Post by: jimlfixit on February 02, 2020, 06:09:37 PM

Hi Roymixer

I built several of these Keyboard splitter boxes for SSL when I worked there (1980-87) and know about the wiring although the 6 way Lemo connector shown on your diagram was probably a later addition.

Not sure what you need to know exactly but let us know so we can help.

Title: Re: 681G G remote keyboard interface schematic
Post by: Philn on February 03, 2020, 10:37:20 PM

Hi Roy,
You have all the documentation that there is as far as I know.
The serial/parallel interface was made by Alphameric Keyboards LTD. in the UK who are long gone.
I have a couple of complete G remote k/boards and interfaces with all the cables if you are interested.

Title: Re: 681G G remote keyboard interface schematic
Post by: RoyMixer on February 04, 2020, 01:06:29 PM

Hi Jim and Phil.

I have a smaller e-series size keyboard in my G+ -  I was  thinking of building a small panel with some macros that would generate the parallel data (keyboard keystokes) using a micro controller.
so  I am investigating how ssl had two keyboards talking on the same parallel keyboard input.

R

Title: Re: 681G G remote keyboard interface schematic
Post by: Philn on February 04, 2020, 05:37:55 PM

Both "E" or "G" remote keyboards just connect in parallel to the keyboard ribbon to/from the computer.
The G has the interface in a separate box that lives under the console and connects to the remote keyboard via the Lemo cable so that you don't have a cumbersome 50 way ribbon attached.
You can use "E"or "G" remote keyboards with either "E"or "G" integral keyboards.
Someone was selling an E remote keyboard on eBay a while ago.

Title: Re: 681G G remote keyboard interface schematic
Post by: RoyMixer on February 05, 2020, 03:46:34 AM

Thanks Phil!!!